Hamilton by the Slice: Falling in Love with Our Most Influential Founding Father, 2009.

Goodbye Forever: The Diary of Orville A. Ralston, 85 Squadron RAF and 148 US Aero Squadron, 1917-1919, Edited and with an Introduction by William G. Chrystal, 2012.

Niebuhr Studies, Foreword by Douglas John Hall, 2012.

I Would Have Gone On and On: Hamilton Charles Deryk Upton, DFC in the Battle of Britain, 2012. Thomas Jefferson Verses Alexander Hamilton: In Their Own Words, Edited and with an Introduction by William G. Chrystal, 2012.Alexander Hamilton Working Papers, Number One, Edited by William G. Chrystal, 2013.Secrets of the Founding Fathers, Edited by William G. Chrystal, Foreword by Janie Guill, 2014. Devotional Book

The Fellowship of Prayer, Lent 1987.

Monograph

Possessing Your Inheritance: Elmhurst College, the Evangelical Synod and the Niebuhrs. The text of the 1986 Founder’s Day Lecture, February 11, 1986.

“Reinhold Niebuhr and the First World War,” Journal of Presbyterian History, vol. 55, no. 3 (Fall 1977), pp. 285-298. This essay also appears in Martin E. Marty, ed., Modern American Protestantism and its World: Historical Articles on Protestantism in American Religious Life, vol.6, Protestantism and Social Christianity (Munich: G.K. Saur, 1992), pp. 194-207.

“And Thanks for His Grace,” Congregational Journal, vol. 9, no. 1 (September 1983), pp. 29-35 (The text of an address sponsored by the Congregational Christian Historical Society, delivered in Lincoln, Nebraska, on the 100th Anniversary of the founding of the General Conference of German Congregational Churches, June 12, 1983).

“German Congregationalism,” in Hidden Histories in the United Church of Christ, Barbara Brown Zikmund, ed. (New York: Pilgrim Press, 1984), pp. 64-80. In slightly different form this essay appears in the Journal of the American Historical Society of Germans from Russia, vol. 6, no. 2 (Summer 1983), pp. 31-39.